7MS #551: Interview with Matt Warner of Blumira
7 Minute Security16 Joulu 2022

7MS #551: Interview with Matt Warner of Blumira

Today we welcome our pal Matthew Warner (CTO and co-founder of Blumira) back to the show for a third time (his first appearance was #507 and second was #529).

I complained to Matt about how so many SIEM/SOC solutions don't catch early warning signs of evil things lurking in customer networks. Specifically, I whined about 7 specific, oft-missed attacks like port scanning, Kerberoasting, ASREPRoasting, password spraying and more. (Shameless self-promotion opportunity: I will be discussing these attacks on an upcoming livestream on December 29).

Matt dives into each of these attacks and shares some fantastic insights into what they look like from a defensive perspective, and also offers practical strategies and tools for detecting them!

Note: during the discussion, Matt points out a lot of important Active Directory groups to keep an eye on from a membership point of view. Those groups include:

  • ASAAdmins
  • Account Operators
  • Administrators
  • Administrators
  • Backup Operators
  • Cert Publishers
  • Certificate Service DCOM
  • DHCP Administrators
  • Debugger Users
  • DnsAdmins
  • Domain Admins
  • Enterprise Admins
  • Enterprise Admins
  • Event Log Readers
  • ExchangeAdmins
  • Group Policy Creator Owners
  • Hyper-V Administrators
  • IIS_IUSRS
  • IT Compliance and Security Admins
  • Incoming Forest Trust Builders
  • MacAdmins
  • Network Configuration Operators
  • Schema Admins
  • Server Operators
  • ServerAdmins
  • SourceFireAdmins
  • WinRMRemoteWMIUsers
  • WorkstationAdmins
  • vCenterAdmins

Jaksot(681)

7MS #642: Interview with Ron Cole of Immersive Labs

7MS #642: Interview with Ron Cole of Immersive Labs

Ron Cole of Immersive Labs joins us to talk pentest war stories, essential skills he learned while serving on a SOC, and the various pentest training and range platforms you can use to sharpen your security skills! Here are the links Ron shared during our discussion: VetSec Fortinet Veterans Program Immersive Labs Cyber Million FedVTE

23 Syys 202442min

7MS #641: DIY Pentest Dropbox Tips – Part 10

7MS #641: DIY Pentest Dropbox Tips – Part 10

Today we’re revisiting the fun world of automating pentest dropboxes using Proxmox, Ansible, Cursor and Level.  Plus, a tease about how all this talk about automation is getting us excited for a long-term project: creating a free/community edition of Light Pentest LITE training!

13 Syys 202427min

7MS #640: Tales of Pentest Pwnage – Part 63

7MS #640: Tales of Pentest Pwnage – Part 63

This was my favorite pentest tale of pwnage to date!  There’s a lot to cover in this episode so I’m going to try and bullet out the TLDR version here: Sprinkled farmer files around the environment Found high-priv boxes with WebClient enabled Added “ghost” machine to the Active Directory (we’ll call it GHOSTY) RBCD attack to be able to impersonate a domain admin using the CIFS/SMB service against the victim system where some higher-priv users were sitting Use net.py to add myself to local admin on the victim host Find a vulnerable service to hijack and have run an evil, TGT-gathering Rubeus.exe – found that Credential Guard was cramping my style! Pulled the TGT from a host not protected with Credential Guard Figured out the stolen user’s account has some “write” privileges to a domain controller Use rbcd.py to delegate from GHOSTY and to the domain controller Request a TGT for GHOSTY Use getST.py to impersonate CIFS using a domain admin account on the domain controller (important thing here was to specify the DC by its FQDN, not just hostname) Final move: use the domain admin ccache file to leverage net.py and add myself to the Active Directory Administrators group

7 Syys 202443min

7MS #639: Tales of Pentest Pwnage - Part 62

7MS #639: Tales of Pentest Pwnage - Part 62

Today’s tale of pentest pwnage talks about the dark powers of the net.py script from impacket.

3 Syys 20247min

7MS #638: Tales of Pentest Pwnage – Part 61

7MS #638: Tales of Pentest Pwnage – Part 61

Today we’re talking pentesting – specifically some mini gems that can help you escalate local/domain/SQL privileges: Check the C: drive! If you get local admin and the system itself looks boring, check root of C – might have some interesting scripts or folders with tools that have creds in them. Also look at Look at Get-ScheduledTasks Find ids and passwords easily in Snaffler output with this Snaffler cleaner script There’s a ton of gold to (potentially) be found in SQL servers – check out my notes on using PowerUpSQL to find misconfigs and agent jobs you might able to abuse!

23 Elo 202432min

7MS #637: BPATTY[RELOADED] Release Party

7MS #637: BPATTY[RELOADED] Release Party

Hello friends, I’m excited to release BPATTY[RELOADED] into the world at https://bpatty.rocks! – which stands for Brian’s Pentesting and Technical Tips for You! It’s a knowledge base of IT and security bits that help me do a better job doing security stuff! Today I do an ACTUAL 7-minute episode (GASP…what a concept!) covering my favorite bits on the site so far. Enjoy!

17 Elo 20247min

7MS #636: A Prelude to BPATTY(RELOADED)

7MS #636: A Prelude to BPATTY(RELOADED)

Artificial hype alert!  I’m working on a NEW version of BPATTY (Brian’s Pentesting and Technical Tips for You), but it is delayed because of a weird domain name hostage negotiation situation.  It’s weird.  But in the meantime I want to talk about the project (which is a pentest documentation library built on Docusaurus) and how I think it will be bigger/better/stronger/faster/cooler than BPATTY v1 (which is now in archive/read-only mode).

12 Elo 202411min

7MS #635: Eating the Security Dog Food - Part 7

7MS #635: Eating the Security Dog Food - Part 7

Today we’re talking about eating the security dog food – specifically: Satisfying critical security control #1 Using the Atlassian family of tools to create a ticketing/change control system and wrap it into an asset inventory Leveraging Wazuh as a security monitoring system (with eventual plans to leverage its API to feed Atlassian inventory data)

3 Elo 202445min

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